Recommended · for beginners

Short and sweet: pull up/pull down resistors explained

learnelectronics

Why people recommend it

A brief explainer on pull-up and pull-down resistors, often handed to beginners whose inputs behave erratically because a pin has been left floating.

Watch for: Suits anyone new to input pins

In their words

I found a solution by watching this video.
JD9999 on electronics.stackexchange.com, Nov 2021. CC BY-SA.

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